Hairpin



STANLEY L. MYERS, OF BERKELEY, CALIFORNIA.

maria.

Specification of Letters Patent.

Patented Nov. 11, 1919.

Application filed November 26, 1918. Serial No. 264,136.

To all whom it may concern:

Be it known that I, STANLEY L. MYERS, a citizen of the United States, residing at Berkeley, in the county of Alameda and State of California, have invented certain new and useful Improvements in Hairpins, of which the following is a specification.

The present invention relates to improvements in hairpins and to the method of making the same, and has for its principal objects to provide a hair pin wherein the prongs intermediate the ends thereof and preferably adjacent the head of the pin are formed with spiral portions providing lateral extensions on all sides of the prongs, whereby the pin when inserted engages the hair and-due to the spirals is retained in position until withdrawn by the user, thus overcoming the liability of the pins from falling out. A further object of the invention is to provide the spiral coils in the opposing prongs disposed in opposite directions whereby the hair received between the prongs is forced tightly together as the pin is inserted in the hair, thus affording an additional means for retaining the pin in the hair of the user.

In manufacturing pins by my improved method, I dispense with the complicated machinery for forming coils or spiral portions in the hair pin prongs and form the coils in the prongs intermediate their length by a simple twisting of the prongs into a tight spiral coil, and by thence extending the tightly formed spirals by drawing the pron portions lying at opposite sides thereo longitudinally, forming in said prongs spirals the angle of the twist of which is reduced, obviously reducing the severe screw action of said coil.

With the above mentioned and other objects in view, the invention consists in the novel construction and combination of parts hereinafter described, illustratedin the accompanying drawings and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

To more fully comprehend the invention, reference is, directed to the accompanying drawings, wherein Figure 1 discloses a blank prior to bending inthe carrying out of my improved method.

Fig. 2 discloses a hair pin formed in accordance with my improved method and illustrating the tight spirals disposed at right angles to the prong portions which they connect and prior to the elongation of the same.

Fig. 3 is a view in side elevation of the completed pin.

Fig. l is a sectional view taken on line 4.4 of Fig. 3.

In carrying out my invention, I take a section of suitable wire, preferably circular in cross section, and bend the same as at 1, providing a loop at the upper end of the pin and two parallel substantially straight prongs extending therefrom, as in Fig. 1 of the drawings. A cylindrical member 2 is thence disposed transversely of the prongs, Fig. 1 of the drawings, preferably adjacent the loop portion 1 and around the same is bent the prongs 3, said bent portion being in the form of tight spiral coils 4, Fig. 2 of the drawings, disposed in substane tially the same plane and at substantially right angles to the portion of the prongs adjacent the loop 1. The coils 4 comprise preferably a number of convolutions and the terminal portions of the prongs at the outer ends of said coils lie, on the completion of the coils, in substantially the same plane as the portions of the prongs adjacent the loop 1.

In the further formation of the spiral prongs the free portions of the prongs are drawn longitudinally in the direction of the arrows, thus extending the coils and reducing the pitch thereof, during such movement the prongs being elongated and forming a pin having prongs of a length slightly less than illustrated in Fig. 1 of the drawings prior to the forming of the coils.

The completed pin, as illustrated in Fig. 3 of the drawings, is provided with oppositely disposed spiral hair engaging prongs, and the inner ends of said spirals are disposed closer together than the outer ends adjacent the terminal points of said prongs. The straight terminal portions 5 of said prongs assist in positioning and guiding the pin in the hair of the user and are preferably in line with the outer side of the respec tive spirals, increasing the distance between the terminal points of the prongs over that between the portions thereof adjacent the loop 1, whereby considerable hair is accommodated between the free ends of the prongs and on the seating of the pin is forced tightly between the spirals, and thus assists in holding the pin in place.

Having thus described my invention, what I claim as new and desire to protect by Let-- ters Patent is 1. The method of manufacturing a hair pin having spiral. prongs which consists in bending the material forming the pin to provide parallel prongs, forming in said prongs intermediate the ends thereof tight spiral coils disposed in substantially the same plane and outwardly extended at substantially right angles to the prong connecting loop at the head of the pin and with the prong portionsat each side of said spiral coil lying in substantially the same plane, and thence drawing said coils outwardly by exerting pressure longitudinally of the prong portions at each side thereof, disposing said coils and prong portions at opposite ends thereof in substantial alinement.

2. The method of manufacturing a hair pin having spiral prongs which consists in bending a blank to form parallel prongs, thence twisting said prongs intermediate the ends thereof to form outwardly extended tight spiral coils disposed in substantially the same plane and arranged at substanmenses tially right angles to the prong portions which the same connect and with said connected prong portions disposed in substantially the same plane, and thence drawing said coils outwardly by exerting pressure longitudinally of the prong portion at each side thereof disposing said coils and prong portions at opposite ends thereof in substantial alineinent.

3. The method of manufacturing a hair pin having spiral prongs-Which consists in bending a blank to form parallel prongs, thence twisting said prongs intern'lediate the ends thereof to form outwardly extended oppositely pitched tight spiral coils disposed in substantially the same plane and arranged at substantially right angles to the prong portions which thesame connect and with said'connected prong portions disposed in substantially the same plane, and thence drawing said coils outwardly by exerting pressure longitudinally of the prong portion at each side thereof disposing said coils and prong portions at opposite ends thereof in substantial alinement.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

STANLEY L. MYERS.

\Vitnesses:

HARRY A. Tor'rEN, D. B. RICHARDS. 

